Perhaps you should try some spelling variations:
"investigacion dogmaticas del servicio" » "investigacion dogmatica del servicio", "investigacion formativa del servicio", "investigacion logistica del servicio", "investigacion dogmatico del servicio", "investigacion dogmaticos de servicio"
"investigacion objetivos del servicio" » "investigacion objetivo del servicio", "investigacion objetivos de servicio", "investigacion objetivos 4 servicio", "investigacion objetivos 3 servicio"
"investigacion creativa del servicio" » "investigacion formativa del servicio", "investigacion operativa del servicio", "investigacion narrativa del servicio", "investigacion creativa de servicio", "investigacion creativo del servicio", "investigacion creativos del servicio"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("investigacion objetivos del servicio") or ((("investigacion dogmaticas del servicio") or ("investigacion creativa del servicio"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("investigacion objetivos del servicio") OR ((("investigacion dogmaticas del servicio") OR ("investigacion creativa del servicio"))))*.
• Removing quotes may allow a broader search: (( investigacion objetivos del servicio ) or ((( investigacion dogmaticas del servicio ) or ( investigacion creativa del servicio ))))*.